I have often been told by well meaning individuals that I would lose weight if I would lower my caloric intake to just 500 calories per day. That tactic did not work for my grandmother. As a matter of fact, I believe it destroyed her metabolism and that the recommended subsequent diet of low fat was her complete undoing. I do not believe in a low fat diet anymore.
Low fat foods do not satisfy me. They tend to leave me with a stomach ache long before I am satisfied. A mere 4 ounces of turkey, 1 cup of salad greens, 1 tablespoon of olive oil, and drinking plenty of water spiked with lemon juice is satisfying for me. For me, the protein and the olive oil are key components of my effective diet.